Document vVDOMdeXVB8kVDaa5rzypopMY

WILLIAM E. ZIMMERMAN DIRECTOR OF INDUSTRIAL RELATIONS LAMSON BLANEY. M.D. MEDICAL OIRECTOR SUN OIL COMPANY PHILADELPHIA 3,PA. August 28, 1958 Robert A. Kehoe, M.D. The Kettering LaboratoryUniversity of Cincinnati College of Medicine Cincinnati, Ohio Dear Bob: This is a follow-up on a letter which I wrote on April 7, 1958 addressed to the Product Service and Safety Section of Ethyl Corporation in New York City regarding Ethyl Anti-Knock Compound, Experimental AK-33-X. This letter was forwarded to you by Mr. H. K. Ball. I wonder if you are in a position to supply me with any specific information as to the toxic ranges for this material relative to animal and human exposure? My previous letter outlines the items in which I have particular interest. With best personal-regards, Co ' Lally yours, (you. Lamson Blaney, M.D. Medical Director LBslbf cc: Mr. H. K. Ball Mr. W. S. Wood